TORONTO Oct 26 (Reuters) - Canada's main stock index fell
on Monday as resources stocks weighed and investors remained
skittish about Valeant Pharmaceuticals despite its attempts to
address recent allegations made against it by an influential
short-seller.

The heavyweight energy group fell 3 percent and materials,
which includes miners and other resource stocks, lost 2.7
percent on lower commodity prices and fading expectations for
more global monetary easing, while banks and telecom companies
were among the leading gainers.

The most influential single weight was Valeant,
down 5 percent at C$145, after it fired back about "completely
untrue" allegations it had used its ties with a specialty
pharmacy to inflate revenue.

U.S. crude prices were down 1.3 percent at $44.04 a
barrel, while Brent crude lost 0.9 percent to $47.55.

The most influential movers in the energy group were
Canadian Natural Resources, which declined 1.4 percent
to C$30.67, and Encana Corp, off 4.6 percent at
C$10.10.

Gold miners were also among the weights even as bullion
inched up off a three-day losing streak, with Barrick Gold Corp
falling 2.2 percent to C$9.99, and Goldcorp Inc declining
2.3 percent to C$20.02.
(Reporting by Alastair Sharp; Editing by Chizu Nomiyama)